Steam boiler



Nov. 7, 1950 Filed 001'.. 30, 1946 J. H. oBERHoLTzER STEAM BoILER foa 3 Sheets-Sheet 1 INVENTOR c/n H beroifze);

a, amywf@ A'ITEI R N EYB Nov 7, 1950 J. H. oBERHoLTzER 2,529,044

STEAM BOILER Filed Oct. 30, 1946 5 Sheets-Sheet 2 ATTDRN EYE Nov. 7, 1950 J. H. oBERHoLTz'ER 2,529,044

' STEAM BOILER Filed oct. .30, 194e s sheets-sheet s INV EN TOR.

L/O??? @Eff/70227267) Patented Nov. 7, 14950 STEAM BOILER John H. Oberholtzcr, Harrisburg, Pa.

Application October 30, 1946, Serial No. 706,609

My present invention relates to an improved steam boiler and more especially to the novel and unique construction employed whereby the maximum amount of heat available from a gas burner in the boiler, will be utilized to create steam from the water in the boiler.

Generally, my invention contemplates-La hot gas passage upwardly through the boiler 'and a plurality of downward passages to the exhaust pipe utilizing the heat of the gases of combustion to their maximum extent.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention according to the best mode I have thus far devised, but it will be understood that various changes and :alterations may be made in the exemplified structure within the scope of the appended claims.

In the drawings:

Fig. 1 is a front elevational view of the boiler of my invention.

Fig. 2 is a side elevational view thereof.

Fig. 3 is a vertical sectional view from front to back.

Fig. 4 is a 4 4 of Fig. 3.

Fig. 5 is a 5 5 of Fig. 3

Fig. 6 is a 6 6 of Fig. 3.

Fig. '7 is a horizontal sectional 1 1 of Fig. 3.

Fig. 8 is a horizontal sectional 8 8 of Fig. 3.

Referring now to the drawings, I utilize in the present preferred embodiment of my invention, a casing 2 having a bottom l and top 5. This casing may be fabricated of any suitable material and is mounted upon a base t having an opening 8 for air inlet and a vertical partition I0 defining :a pair of closed sections. rlhe exhaust pipe l2 from the base communicates with a stack, not shown.

Within the casing I employ a housing I4 for the gas burner I6 and above the burner in the housings are placed baffles I8 having star openings or apertures therein, .and the pipe i9 provides a supply of gas for the burner through the opening 2S covered by plate 2|.

Above the housing and in communication therewith I employ a vertical tube 22 extending through the upper partition 24, and the coil 26 in the tube is ported upwardly at 30 and below at 28. A helical bale 32 within the tube creates a helical current of hot gases in the tube and horizontal sectional view at line horizontal sectional View at line horizontal sectional View at line view at line View at line 2 Claims. (Cl. 122-182) guides the hot gases over the coil-26, thus heating the water in the `coil and normally maintained atlevel W. A cap 34 is -formed forl the tube and from this cap extend pipes 35 to caps 38 of the tubes or shells 40 through which the gases pass downwardly to the exhaust i2.

Coils l2 in these tubes haveupper connections M and lower connections @E with the boiler and as the water in the coils 25 and 42 is converted into steam, it arises above the water level and passes out through pipe 48. Conventional gauges 50 are provided in this pipe :and the steam pressure may be used in suitable manner.

Water is furnished the boiler through pipe or conduit 52 from supply pipe 54' having drain faucet 56, and the level of water within the boiler may be seen through the conventional water level sight glass 58.

From the above description of my invention it will be apparent that the maximum amount of heat in the gases of combustion will be utilized to convert the water to steam and the use of my boiler will result in a more eicient operation.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a steam boiler, a base provided with an opening for the egress therethrough of air, a casing supported on said base, a conduit connected to said casing for conveying water from a source of supply thereto, pipe means connected to said casing for the egress therethrough of steam, a housing positioned within said casing and arranged in communication with said base, a gas burner supported within said housing and connected to a source of gas supply, a plurality of horizontally-disposed apertured baffles arranged in spaced parallel relation above said gas burner yand supported in said housing, a vertically-disposed tube positioned in said casing and in communication with said housing for the egress therethrough of the products of combustion from said burner, a coil disposed in said tube and having its ends in communication with the interior of said casing for the circulation therethrough of water, :a baille positioned in said tube for distributing the products of combustion over said coil, a plurality of pipes each having one end communicating with the upper end of said tube for conveying products of combustion from the latter, :a plurality of vertically-disposed shells positioned within said casing and supported on said base, the upper'end of each of and a pipe operatively connected to theY lower end of said shells for conveying `products of cornbustion from the latter to a stack.

2. In a steam boiler, a base provided with an opening for the egress therethrough of air, a casing supported on said base, a conduit connected to said casing for conveying water from a source of supply thereto, pipe means connected to said casing for the egress therethrough of i,

steam, a housing positioned within `said casing and arranged in communication with said base,

a gas burner supported within said housing and connected to a source of gas supply, a plurality of horizontally-disposed apertured baiiies far ranged in spaced parallel relation above said gas burner :and supported in said housing, a Vvertically-disposed tube positioned vin dsaid casing and in communication with said housing for the egress therethrough of the products of compustion from said burner, a yfirst coil disposed in said tube and having its ends in communication with the interior of said casing for the circulation therethrough of water, e, helical baiiie positioned in said tube for distributing the products of combustion over said coil, a plurality vof pipes each having one end communicating with the upper endy ofsaid tube for conveying products of combustion'from the latter, a plurality of ver'- ti-cally-disposed shells positioned within said casing and supported on said base, the upper end of each of said shells being connected to one of said pipes, a pipe operatively connected to the lower end of said shells for conveying products of combustion from the latter to a stack, and a second coil positioned in each of said shellsV and having its ends in communication with the interior of said casing for the circulaof water. u JOHN'H. OBERHOLTZER.

REFERENCES CITED The following references are of record in the ,rile ofthis patent:

UNITED STATES PATENTS Number Name Date 15619,'8'8'9 Scott 'Man 8, 1927 1,935,919 Ronstrom Nov. 21, 1933 1,943,622 Piatt Jan. 16, 1934 1,995,185 Macchi Mar. 19, 11935 2,173,115 Hutto Sept. 19, 1939 2,286,677 Greth June 16, 1942 FOREIGN PATENTS Number Country Date Great VBritain June 2, 1921 

